Invention Grant
- Patent Title: Free access control
- Patent Title (中): 免费访问控制
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Application No.: US1643460Application Date: 1960-03-21
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Publication No.: US3219979APublication Date: 1965-11-23
- Inventor: STEPHEN BESPALKO , EVANS JAMES R , KLOTZ RAYMOND J
- Applicant: IBM
- Assignee: Ibm
- Current Assignee: Ibm
- Priority: US1643460 1960-03-21
- Main IPC: G06F13/16
- IPC: G06F13/16
Information query
